Mouth-cleansing apparatus



L. HATCHER ET AL 'MOUTH CLEANSING APPARATUS I Filed Jan. 24. 1921 2 Sheets-Sheet 1 JOINT INVENTOR 3 WWW \ ATTORNEY R. L; H-ATCHER E1 AL MOUTH CLEANSING APPARATUS Aug. 28, 1 923.

Filed Jan. 24,

1921 2 Sheets-Sheet 2 JOINT INVENTORS.

BY' M i- ATTORNEY barrel 26 threaded at one end to receive the various nozzle attachments by means of the clamp nut 42 and lock nut 35 and at the opposite end to receive the sleeve 28 to which is soldered the flexible spring 29 which tends to prevent pulling or shutting off of the flexible tube which fits tightly over the ribs on the barrel end from the pressure chamber. This barrel 26 is partial ly covere'dwith ebonite 27 .to add to the appearance of the handpiece. At right angles to the. longitudinal hole in the barrel 26 is a largerhole to receivethe sliding piston 310f the piston shutoff valve. The circular piston 31 is" provided with a small pin or' lug which slides in a groove in the barrel 26 and the cap 30, thus preventing its turning during operation. Between the cap 30 and the piston 31 is a spring 33, which fits into a hole in the base of thepiston 31, which tends to keep. the piston 31always at the top of the hole and against the small rubber washer 34 and the cap 32. At the top of the hole in the piston 31 containing the spring 33 is another small hole which allows any fluid which may have escaped into the spring chamber to-pass intothe main opening in the barrel '26, thus making it always easy to work the piston shutoff valve This piston 31,;.which is slightlylarger than the longitudinal hole in the barrel 26, is ground toa perfect fit, which together with the rubber washer 34 reduces-leakage to a minimum.

Caps 30 and 32 screw into place. The nozzle 36 may be made with a large or small diameter opening and 1s intended for use as a tooth and socketwashe'r, wound and infected area cleanser or nasal track and antrum cleanser. This nozzle 36lis clamped in place by means of the clamp nut 42 and lock nut The nozzle consisting of the tube 37, needle tube 38 and lock sleeve39 is intended for washing out pyorrhea pockets at the roots of teeth and abscessesi :The tube 37 is split at the end so that when-the tapered lock sleeve 39 is pushed on, it firmly grips the needle tube 38. The nozzle, consisting of the tube 40 open at the end where the bristle plate 11 is attachedby means of small screws as shown inFig. 10, is'the toothbrush attache ment and by means of small openings in between the bristles water is forced through the bristles and unto the teeth to be cleaned,

thus aiding in the cleansingoperation. The handplece and nozzles are made of corroslveresisting metal or materialsuch as phosphor warm cleansing solution through the filler cap 13. The cap 13 is then screwed into the casing l lvand the pressure chamber is ready for pperation. By opening the valve 20- 21 water under the hydraulic head of the city, municipal or domestic water supply is admitted to the pressure pot or chamber 19. As the valve 22-23 is closed during this operation, the rubber b ag24 containing the cleansing solution is forced upwards and inwards by the resultant outer pressure, thus creating an equilibrium pressure in the cleansing solution, counteracting the external pressure on the bag 24;. I Thus no serious stresses are produced in therubber bag 24;, v

, This cleansing fluid is then forced through the regulator valve 16 17l8 when it is opened and regulated by means of the threaded spindle18 and may be adjusted :to the desired degree of flow. solution thenpasses. on to the .handpiece where it is controlled by means of the piston valve 303132-33 34 by merely pressing down the plunger cap with the' thumb or finger of the operators hand. The cleansing solution then passes through the nozzle used to the parts of the body to be cleansed. When The cleansing thenozzle :36 having an opening of or x] isused as a tooth and socket cleanser,- the high velocity of thefiuid due to the reduced area of section. and sudden impact causedby releasing the valve sharply will clean very thoroughly andefiectively remove head, but can also be conveniently used for other parts of the body. When through using the apparatus, the, filler cap 13 is unscrewed'andthe outletvalve 22-423 opened,

allowing the: water in the pressure ichamber 19 to drain off and therubber sack 24- to return to its originalposition. The apparatus described holds approximately one quart of cleansing solution,; which is considered ample for most uses.

An important advantage of our construction is that it permits of using any desired cleansing 'fluid and discharging thei'sam'e under the full pressure of the water system.

The apparatus may beeasily installed and if desired, maybe permanently connected into the hydraulic system in a convenient. and

accessible location.

-What we claim as our invention is: V

1. The combination of anvouter casing, a collapsible container within said casing, a capped fill opening. for said 1 container, means for connecting said outer casing al ternatively with a source of hydraulic pressure and a waste conduit, a :conduitleading from said collapsible contalner provided with a flexlblesectlon-terminatlng ina ,handpiece, means for variably restricting the flow through said conduit, a discharge nozzle engageable. with said handpiece, and

a valve in said handpiece controlling the discharge through said nozzle.

2. The combination of an outer casing, valve controlled inlet and outlet connections to said casing respectively leading to a source of hydraulic pressure and a waste fitting, a flexible conduit leading from said fitting, a handpiece at the outer end of said conduit, means for 'eiichangeablyv engaging With said handpiece, a nozzle including a brush having a liquid discharge jet therethrough, and a valve for controlling the discharge through said nozzle.

3. The combination with a collapsible container, of a chamber surrounding, a portion of said container, valve controlled means for connecting said chamber with a source of hydraulic pressure, a flexible conduit leading from said contalner, means-for regulating the discharge through said con-' duit, a discharge nozzle at the end of said conduit, and means for controlling the discharge from said nozzle.

4. The combination with a collapsible container, of a chamber surrounding a'portion of said container, manually operated valve controlled means for connecting said chamber with a source of hydraulic pres sure, a conduit leading from said container,

means for regulating the discharge through said conduit, a discharge nozzle at the end of said conduit, and means for-controlling the discharge from said nozzle. c

5. The combination with a collapsible container, of a metallic receptacle surrounding a portion of said container, valve con:

trolled means for connecting said receptacle with a source of hydraulic pressure, a conduit lea-ding from-saidcontainer, rotatable means for regulating the discharge through said conduit, a discharge nozzle at the end of said conduit,- and means for controlling the discharge from said nozzle. In testimony whereof we affix our signatures. r

' ROBERT L. HATCHER.

HARRY A. FARR. 

